1 /// This declares a list of types which can be allocated by `Arena`.
3 /// The `few` modifier will cause allocation to use the shared arena and recording the destructor.
4 /// This is faster and more memory efficient if there's only a few allocations of the type.
5 /// Leaving `few` out will cause the type to get its own dedicated `TypedArena` which is
6 /// faster and more memory efficient if there is lots of allocations.
8 /// Specifying the `decode` modifier will add decode impls for `&T` and `&[T]`,
9 /// where `T` is the type listed. These impls will appear in the implement_ty_decoder! macro.
11 macro_rules! arena_types {
12 ($macro:path, $args:tt, $tcx:lifetime) => (
15 [few] hir_krate: rustc_hir::Crate<$tcx>,
16 [] arm: rustc_hir::Arm<$tcx>,
17 [] attribute: rustc_ast::ast::Attribute,
18 [] block: rustc_hir::Block<$tcx>,
19 [] bare_fn_ty: rustc_hir::BareFnTy<$tcx>,
20 [few] global_asm: rustc_hir::GlobalAsm,
21 [] generic_arg: rustc_hir::GenericArg<$tcx>,
22 [] generic_args: rustc_hir::GenericArgs<$tcx>,
23 [] generic_bound: rustc_hir::GenericBound<$tcx>,
24 [] generic_param: rustc_hir::GenericParam<$tcx>,
25 [] expr: rustc_hir::Expr<$tcx>,
26 [] field: rustc_hir::Field<$tcx>,
27 [] field_pat: rustc_hir::FieldPat<$tcx>,
28 [] fn_decl: rustc_hir::FnDecl<$tcx>,
29 [] foreign_item: rustc_hir::ForeignItem<$tcx>,
30 [] impl_item_ref: rustc_hir::ImplItemRef<$tcx>,
31 [] inline_asm: rustc_hir::LlvmInlineAsm<$tcx>,
32 [] local: rustc_hir::Local<$tcx>,
33 [few] macro_def: rustc_hir::MacroDef<$tcx>,
34 [] param: rustc_hir::Param<$tcx>,
35 [] pat: rustc_hir::Pat<$tcx>,
36 [] path: rustc_hir::Path<$tcx>,
37 [] path_segment: rustc_hir::PathSegment<$tcx>,
38 [] poly_trait_ref: rustc_hir::PolyTraitRef<$tcx>,
39 [] qpath: rustc_hir::QPath<$tcx>,
40 [] stmt: rustc_hir::Stmt<$tcx>,
41 [] struct_field: rustc_hir::StructField<$tcx>,
42 [] trait_item_ref: rustc_hir::TraitItemRef,
43 [] ty: rustc_hir::Ty<$tcx>,
44 [] type_binding: rustc_hir::TypeBinding<$tcx>,
45 [] variant: rustc_hir::Variant<$tcx>,
46 [] where_predicate: rustc_hir::WherePredicate<$tcx>,